Rear housing assembly and liquid crystal module

CN122546497APending Publication Date: 2026-08-11SUZHOU TONGLI PHOTOELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-20
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0005]基于此,有必要针对液晶模组的装配工序较多、成本较高,且中框和后壳的接缝处容易导致漏光的问题,提供一种后壳组件和液晶模组

Benefits of technology

[0028]此后壳组件中,背板、侧板和支撑板构造为一体式结构,相较于相关技术中后壳与中框分体组件的方案,该一体式的后壳组件省去了后壳与中框的组装流程,有效简化了装配工序、降低了制造成本。同时,由于背板、侧板和支撑板为一体式结构,不存在拼接缝隙,可有效减少漏光现象的发生,提升了背光模块的光利用效率及显示品质。

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Abstract

This application relates to a back cover assembly and a liquid crystal module. The back cover assembly includes a back panel, multiple side panels, and a support plate. The multiple side panels surround the outer periphery of the back panel, and the side panels are set at an angle to the back panel. The support plate is disposed at the end of the side panels away from the back panel, and the support plate is set at an angle to the side panels. The back panel, multiple side panels, and support plate form a connected receiving cavity and an entrance. The support plate is used to support the liquid crystal panel, and the receiving cavity is used to accommodate the backlight module. The back panel, side panels, and support plate are constructed as a single unit. The single-unit back cover assembly effectively simplifies the assembly process and reduces manufacturing costs. Since the back panel, side panels, and support plate are a single unit, there are no splicing gaps, which can effectively reduce light leakage and improve the light utilization efficiency and display quality of the backlight module.
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Description

Technical Field

[0001] This application relates to the field of display device technology, and in particular to back cover components and liquid crystal modules. Background Technology

[0002] A display screen typically consists of a liquid crystal module, which includes a liquid crystal panel and a backlight module. The liquid crystal panel displays images by controlling the rotation or deflection angle of the liquid crystals, while the backlight module provides a light source to the liquid crystal panel for displaying the image.

[0003] In related technologies, the LCD module also includes a middle frame and a back cover for mounting the backlight assembly and the LCD panel. During the assembly process, the backlight module is first placed inside the back cover, then the middle frame is snapped or threaded onto the back cover, and finally the LCD panel is bonded to the middle frame.

[0004] However, the assembly process of the aforementioned LCD modules is complex and costly, and the seams between the mid-frame and the back cover are prone to light leakage. Summary of the Invention

[0005] Therefore, it is necessary to provide a back cover assembly and an LCD module to address the issues of numerous assembly steps, high costs, and light leakage at the joint between the middle frame and the back cover of LCD modules.

[0006] A rear housing assembly for mounting a backlight module and an LCD panel, comprising:

[0007] Back panel;

[0008] Multiple side panels are arranged around the outer periphery of the back panel, and the side panels are set at an angle to the back panel;

[0009] A support plate is disposed at the end of the side plate away from the back plate, and the support plate is disposed at an angle to the side plate. The back plate, the plurality of side plates and the support plate surround and form a connected receiving cavity and an entrance. The support plate is used to support the liquid crystal panel and the receiving cavity is used to accommodate the backlight module.

[0010] The back plate, the side plate, and the support plate are constructed as a single unit.

[0011] In one embodiment, the back plate, the side plate, and the support plate are integrally bent from sheet metal.

[0012] In one embodiment, the support plate includes:

[0013] The support section is used to support the LCD panel;

[0014] The limiting part is set at an angle to the supporting part and extends in a direction away from the receiving cavity. The limiting part is used to abut against the outer edge of the liquid crystal panel.

[0015] In one embodiment, the support portion and the limiting portion are integrally bent from sheet metal.

[0016] In one embodiment, a plurality of connectors are provided on the side of the back plate away from the receiving chamber, the connectors being used to connect external devices.

[0017] In one embodiment, the side plate and / or the back plate are provided with a cable outlet, which communicates with the receiving chamber.

[0018] A liquid crystal module includes a rear housing assembly as described above, and the liquid crystal module further includes:

[0019] A liquid crystal panel is disposed on the support plate;

[0020] A backlight module is disposed in the receiving cavity, and at least one of the support plates presses against the backlight module, the backlight module being used to provide a light source for the liquid crystal panel.

[0021] In one embodiment, a flexible buffer is provided between the liquid crystal panel and the support plate.

[0022] In one embodiment, the backlight module includes:

[0023] The light strip has a mounting area located within the receiving cavity, and the light strip is attached to the mounting area by thermally conductive adhesive; the rear housing assembly is constructed of a thermally conductive material, at least in the mounting area.

[0024] In one embodiment, the backlight module further includes:

[0025] A reflective sheet, a light guide plate, and an optical film are stacked sequentially, and the reflective sheet, the light guide plate, and the optical film are inserted into the receiving cavity through the inlet.

[0026] The aforementioned rear shell assembly includes a back panel, multiple side panels, and a support plate; the multiple side panels surround the outer periphery of the back panel, and the side panels are set at an angle to the back panel; the support plate is located at the end of the side panel away from the back panel, and the support plate is set at an angle to the side panel; the back panel, multiple side panels, and support plate form a connected receiving cavity and an entrance; the support plate is used to support the liquid crystal panel, and the receiving cavity is used to accommodate the backlight module; the back panel, side panels, and support plate are constructed as an integral structure.

[0027] Multiple side panels surround the outer periphery of the back panel, and a support plate is located at the end of the side panel away from the back panel, thereby forming a connected receiving chamber and an entrance. The backlight module can be installed into the receiving chamber through the entrance. The back panel is used to support the backlight module, and the support plate is used to support and fix the LCD panel, thereby achieving integrated installation of the backlight module and the LCD panel through this rear housing assembly.

[0028] In this back cover assembly, the back panel, side panels, and support plate are constructed as a single unit. Compared to related technologies that use separate back cover and mid-frame components, this integrated back cover assembly eliminates the assembly process between the back cover and mid-frame, effectively simplifying the assembly process and reducing manufacturing costs. Furthermore, since the back panel, side panels, and support plate are a single unit, there are no seams, effectively reducing light leakage and improving the light utilization efficiency and display quality of the backlight module. Attached Figure Description

[0029] Figure 1 This is one of the schematic diagrams of a rear shell assembly provided in an embodiment of this application.

[0030] Figure 2 This is a second schematic diagram of a rear shell assembly provided in one embodiment of this application.

[0031] Figure 3 This is a cross-sectional view of a rear shell assembly provided in an embodiment of this application.

[0032] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0033] Figure 5 for Figure 3 A magnified view of a section at point B.

[0034] Figure 6 This is a schematic diagram of a liquid crystal module provided in an embodiment of this application.

[0035] Figure 7 This is a cross-sectional view of a liquid crystal module provided in an embodiment of this application.

[0036] Figure 8 This is a schematic diagram of a light strip provided in one embodiment of this application.

[0037] The above figures include the following reference numerals:

[0038] 1. Rear shell assembly;

[0039] 11. Back panel; 12. Side panel; 13. Support plate; 131. Support part; 132. Limiting part; 14. Receiving chamber; 15. Inlet; 16. Connector; 17. Cable outlet;

[0040] 2. LCD panel;

[0041] 3. Backlight module; 31. LED strip; 311. LED beads; 312. Substrate; 313. Flexible printed circuit board; 32. Backlight assembly;

[0042] 4. Flexible buffer components. Detailed Implementation

[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0044] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that an element is referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. An element is considered to be "connected" to another element, which may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0049] like Figures 1-3 As shown, this application provides a rear housing assembly 1 for mounting a backlight module 3 and a liquid crystal panel 2. This rear housing assembly 1 includes a back plate 11, multiple side plates 12, and a support plate 13. The multiple side plates 12 surround the outer periphery of the back plate 11, and the side plates 12 are arranged at an angle to the back plate 11. The support plate 13 is disposed at the end of the side plate 12 away from the back plate 11, and the support plate 13 is arranged at an angle to the side plate 12. The back plate 11, the multiple side plates 12, and the support plate 13 form a connected receiving cavity 14 and an entrance 15. The support plate 13 supports the liquid crystal panel 2, and the receiving cavity 14 accommodates the backlight module 3. The back plate 11, the side plates 12, and the support plate 13 are constructed as an integral structure.

[0050] Multiple side plates 12 are arranged around the outer periphery of the back plate 11, and a support plate 13 is disposed at the end of the side plate 12 away from the back plate 11, thereby enclosing and forming a connected receiving chamber 14 and an inlet 15. The backlight module 3 can be installed into the receiving chamber 14 through the inlet 15. The back plate 11 is used to support the backlight module 3, and the support plate 13 is used to support and fix the liquid crystal panel 2, thereby achieving the integrated installation of the backlight module 3 and the liquid crystal panel 2 through the rear housing assembly 1.

[0051] In this back cover assembly 1, the back panel 11, side panel 12, and support plate 13 are constructed as a single unit. Compared to the separate back cover and mid-frame components in related technologies, this single-unit back cover assembly 1 eliminates the assembly process between the back cover and mid-frame, effectively simplifying the assembly process and reducing manufacturing costs. Furthermore, since the back panel 11, side panel 12, and support plate 13 are a single unit, there are no seams, which effectively reduces light leakage and improves the light utilization efficiency and display quality of the backlight module 3.

[0052] In some alternative embodiments, the included angle between the side plate 12 and the back plate 11 is 90°, and the included angle between the support plate 13 and the back plate 11 is 90°. It should be noted that the specific angle depends on the actual requirements, and this embodiment does not limit it.

[0053] It should be noted that the shape and size of the housing assembly 1 are matched with the shape and size of the liquid crystal panel 2, so that the support plate 13 can support the liquid crystal panel 2.

[0054] In some alternative embodiments, if the liquid crystal panel 2 is rectangular, then the back plate 11 is also rectangular. The rectangular back plate 11 has four sides, each of which is provided with a side plate 12, and each of the four side plates 12 is provided with a support plate 13. The four support plates 13 are used together to support the liquid crystal panel 2. The four support plates 13, the four side plates 12, and the back plate 11 are arranged to form a receiving cavity.

[0055] like Figure 1 , Figure 3 , Figure 4 As shown, in some alternative embodiments, the back plate 11, side plate 12 and support plate 13 are integrally bent from sheet metal.

[0056] The back panel 11, side panel 12 and support panel 13 can be obtained by bending a single piece of material, which reduces production costs. Furthermore, the back panel 11, side panel 12 and support panel 13 are formed by continuously bending a single piece of material, and there are no seams between them, which solves the problem of light leakage at the joints.

[0057] When forming the back plate 11, side plates 12 and support plate 13 by bending sheet metal, a complete sheet metal is first prepared. The sheet metal is then bent multiple times using a CNC bending machine and corresponding bending dies. The first bend causes the edge of the metal plate to bend relative to the middle area, thereby forming the back plate 11 and multiple side plates 12 at an angle to the back plate 11. The second bend causes the top of the side plates 12 to bend inward, thereby forming the support plate 13 at an angle to the side plates 12.

[0058] In some alternative embodiments, the sheet material is electrolytic zinc-plated steel sheet (SECC) or 304 stainless steel sheet (SUS304).

[0059] In some alternative embodiments, the thickness of this sheet is 1.2 mm. It is understood that the thickness of the back panel 11, side panel 12, and support plate 13 formed by bending this sheet is 1.2 mm.

[0060] In some alternative embodiments, the height of the bent side plate 12 is 7.8 mm, and the radius of the arc formed on the inner side of the bent side plate 12 is 1 mm.

[0061] In some alternative embodiments, the flatness of the back plate 11 is less than or equal to 0.2 mm, ensuring that the flatness of the back plate 11 is relatively good.

[0062] Optionally, such as Figure 1 , Figure 3 , Figure 5 As shown, the support plate 13 includes a support portion 131 and a limiting portion 132. The support portion 131 supports the liquid crystal panel 2. The limiting portion 132 is set at an angle to the support portion 131 and extends in a direction away from the receiving cavity 14. The limiting portion 132 abuts against the outer edge of the liquid crystal panel 2. The support portion 131 provides a stable support surface to support the liquid crystal panel 2. The limiting portion 132 abuts against the outer edge of the liquid crystal panel 2, which can prevent the liquid crystal panel 2 from shifting on the support portion. No additional positioning fixture is required during assembly, so that the liquid crystal panel 2 can be positioned when installed on the support portion 131, making the operation simpler and faster.

[0063] In some alternative embodiments, the width of the support portion 131 is 3 to 4 mm, thereby ensuring that the liquid crystal panel 2 can be stably placed on the support portion 131.

[0064] It should be noted that the width of each support part 131 can be the same or different.

[0065] like Figure 3 , Figure 5 As shown, in some alternative embodiments, the support portion 131 and the limiting portion 132 are integrally bent from sheet metal. Forming the support portion 131 and the limiting portion 132 by bending sheet metal eliminates the need for additional assembly processes, simplifying the assembly steps.

[0066] It is understood that the formed support plate 13 has at least two cutting lines that run through the width of the support plate 13. This allows the portion between the two cutting lines to be bent after the support plate 13 is formed by sheet metal bending, in order to form the limiting portion 132. The portion that is not bent at this time is the support portion 131.

[0067] It should be noted that the number of limiting parts 132 is not limited; there can be one or more.

[0068] Optionally, such as Figure 2As shown, a number of connectors 16 are provided on the side of the back panel 11 away from the receiving chamber 14. The connectors 16 are used to connect external devices. When connecting the back cover assembly 1 to an external device, such as a motherboard or bracket, the connection between the back cover assembly 1 and the external device can be achieved simply and quickly by screwing the nuts directly into the external device and the connectors 16.

[0069] In some alternative embodiments, the connector 16 is a nut seat.

[0070] In some alternative embodiments, the rear shell assembly 1 is cuboid, and the number of connectors 16 is four. The four connectors 16 are arranged in a rectangular shape, so that when the rear shell assembly 1 is connected to the motherboard or bracket, the force is more even, stress concentration is avoided, and the connection reliability is higher.

[0071] In some alternative embodiments, the connector 16 is connected to the back plate by a press-fit process, which results in high assembly efficiency and reliable connection quality.

[0072] Optionally, such as Figure 2 As shown, the side panel 12 and / or the back panel 11 have cable outlets 17, which communicate with the receiving chamber 14. The flexible printed circuit board 313 of the backlight module 3 can pass through the cable outlets 17 and thus connect to the motherboard.

[0073] In some alternative embodiments, the cable outlet 17 is located on the side panel 12; in other alternative embodiments, the cable outlet is located on the back panel 11; in still other alternative embodiments, a portion of the cable outlet 17 is located on the side panel 12 and another portion is located on the back panel 11.

[0074] In some optional embodiments, the four corners of the rear shell assembly 1 are rounded with a radius of 3mm to 5mm. This ensures that the rear shell assembly 1 will not interfere or collide at the sharp corners during subsequent assembly.

[0075] The molding steps of the rear shell assembly 1 described above are as follows:

[0076] Step S1: Provide a sheet material and bend the edge portion of the sheet material relative to the middle area to form a back panel 11 and a plurality of side panels 12 at an angle to the back panel 11.

[0077] Step S2: Continue to bend the top of the side plate 12 inward to form a support plate 13 that forms an angle with the side plate 12;

[0078] Step S3: The support plate 13 has at least two cutting lines. The portion between the two cutting lines is bent outward to form a support portion 131 and a limiting portion 132 that are set at an angle.

[0079] like Figure 6 , Figure 7As shown, one embodiment of this application also provides a liquid crystal module, including the back shell assembly 1 as described above, and further including a liquid crystal panel 2 and a backlight module 3. The liquid crystal panel 2 is disposed on a support plate 13; the backlight module 3 is disposed in a receiving cavity 14, and at least one support plate 13 presses against the backlight module 3. The backlight module 3 is used to provide a light source for the liquid crystal panel 2.

[0080] This LCD module integrates the LCD panel 2 and the backlight module 3 using the aforementioned back shell assembly 1, reducing assembly steps and lowering production costs. Simultaneously, the seamless back shell assembly 1 minimizes light leakage, ensuring the display quality of the LCD module. The support plate 13 supports the LCD panel 2. After the backlight module 3 is placed in the receiving cavity 14, at least one support plate 13 presses against the backlight module 3, thus providing a limit to the backlight module 3 and preventing it from moving.

[0081] Optionally, such as Figure 7 As shown, a flexible buffer 4 is provided between the LCD panel 2 and the support plate 13. By providing a flexible buffer between the LCD panel 2 and the support plate 13, soft contact is achieved between the LCD panel 2 and the support plate 13. When the LCD panel 2 is impacted, the flexible buffer 4 can absorb and disperse stress, prevent damage to the LCD panel 2, and improve the drop resistance of the LCD module.

[0082] In some alternative embodiments, the flexible buffer 4 is a silicone pad, foam, rubber pad, etc.

[0083] In some alternative embodiments, the flexible buffer 4 is first bonded to the support plate 13, then the liquid crystal panel 2 is placed on the flexible buffer 4, and finally the liquid crystal panel 2 is fixed to the support plate 13 by wrapping with adhesive.

[0084] In some alternative embodiments, the liquid crystal panel 2 is bonded to the support plate 13 by an adhesive layer, which can be double-sided tape or foam cushioning adhesive. The adhesive layer is disposed between the support plate 13 and the liquid crystal panel 2, or between the flexible cushioning pad and the liquid crystal panel 2.

[0085] It should be noted that foam cushioning pads and double-sided tape can also serve as flexible cushioning components 4, simultaneously fulfilling the functions of bonding and cushioning.

[0086] In some alternative embodiments, the liquid crystal panel 2 is rectangular. In this case, the adhesive frame is set on the four sides of the liquid crystal panel 2 to form a U-shaped structure, so as to firmly bond the liquid crystal panel 2 to the support plate 13, prevent the liquid crystal panel 2 from tilting or falling off due to partial lack of adhesion, and ensure the stability of the liquid crystal panel 2 installed on the support plate 13.

[0087] In some alternative embodiments, such as Figure 7 As shown, the backlight module 3 includes a light strip 31, and the back cover assembly 1 has a mounting area. The light strip 31 is adhered to the mounting area using thermally conductive adhesive. The back cover assembly 1 is constructed of a thermally conductive material, at least in the mounting area. That is, the light strip 31 is mounted on the mounting area using thermally conductive adhesive. The mounting area is made of a thermally conductive material, and the thermally conductive adhesive also has a high thermal conductivity. This allows the heat generated by the light strip 31 during operation to be quickly conducted to the mounting area and dissipated outwards, resulting in good heat dissipation. This effectively controls the temperature of the light strip 31 and ensures the brightness stability of the light strip 31 during long-term use. Furthermore, the light strip 31 is mounted to the mounting area using thermally conductive adhesive with a front-side adhesion method, resulting in a large contact area and strong adhesion, making it less prone to displacement or detachment during transportation, drops, or other conditions.

[0088] Specifically, the installation area can be located on the back plate 11 or on the side plate 12, depending on the actual needs. This embodiment does not limit the location of the installation area.

[0089] In some alternative embodiments, such as Figure 8 As shown, the light strip 31 includes a substrate 312 and a plurality of LED beads 311. The plurality of LED beads 311 are soldered onto the substrate 312, and the substrate 312 is attached to the mounting area with thermally conductive adhesive.

[0090] It should be noted that, in order to ensure good heat dissipation of the light strip 31, the substrate 312 is made of metal. In some optional embodiments, the substrate 312 is made of aluminum.

[0091] In some alternative embodiments, such as Figure 8 As shown, the light strip 31 also includes a flexible printed circuit board 313, which extends out of the cable outlet 17 and is electrically connected to the main board to control the opening and closing of the light strip 31.

[0092] Optionally, such as Figure 7 As shown, the backlight module 3 further includes a backlight assembly 32, which includes a reflective sheet, a light guide plate, and an optical film. The reflective sheet, the light guide plate, and the optical film are stacked in sequence, and the backlight assembly 32 is inserted into the receiving chamber 14 through the inlet 15.

[0093] In some alternative embodiments, the backlight assembly 32 is rectangular, and the receiving chamber 4 and the inlet 15 are also rectangular. The rear shell assembly 1 has four support plates 13, which are arranged in pairs to form two sets of support groups, referred to as the first group and the second group for ease of description. The two support plates 13 in the first group press against the backlight assembly 32, while the two support plates 13 in the second group do not press against the backlight assembly 32. This ensures that the width of the inlet 15 along the distribution direction of the second group is not less than the width of the backlight assembly 32, while the width of the inlet 15 along the distribution direction of the first group is less than the width of the backlight assembly 32.

[0094] In order to smoothly place the backlight assembly 32 into the receiving chamber 14, the width of the receiving chamber 14 along the distribution direction of the first group is greater than the width of the backlight assembly 32, and the width of at least one of the support plates 13 in the first group is less than or equal to the difference between the width of the receiving chamber 14 and the width of the backlight assembly 32 in the distribution direction of the first group. When the backlight assembly 32 is placed into the receiving chamber 14 through the inlet 15, the backlight assembly 32 is first tilted so that one end of the backlight assembly 32 is higher than the other end along the distribution direction of the first group. The lower end is inserted into the receiving chamber 14 and one end of the backlight assembly 32 abuts against the side plate 12. Then, the backlight assembly 32 is rotated so that the higher end falls down. Since the width of at least one of the support plates 13 in the first group is less than or equal to the difference between the width of the receiving chamber 14 and the width of the backlight assembly 32 in the distribution direction of the first group, the other end of the backlight assembly 32 will not interfere with the support plate 13. This allows the backlight assembly 32 to be placed flat in the receiving chamber 14. Then, the position of the backlight assembly 32 along the distribution direction of the first group is adjusted so that the two support plates 13 press against the backlight assembly 32 together, thus completing the installation.

[0095] In some alternative embodiments, when the backlight assembly 32 is inserted into the receiving chamber 14 through the inlet 15, the gap between each side of the backlight assembly 32 and the side plate 12 is 0.1 mm to 0.2 mm.

[0096] After the light strip 31 emits light, the light is directed to the upper and lower directions by the light guide plate. The downward light is reflected into upward light by the reflector located below the light guide plate, so that the light emitted by the light strip 31 can all propagate upward and be projected onto the liquid crystal panel 2 after being modulated by the optical film.

[0097] In some optional embodiments, the optical film includes a brightness enhancement film and a diffusion film. The brightness enhancement film is disposed on the light guide plate, and the diffusion film is disposed on the brightness enhancement film. The upward-propagating light passes through the brightness enhancement film and the diffusion film in sequence. The brightness enhancement film is used to correct the direction of light, concentrate the light in front, and recover unused light, thereby greatly improving the luminous brightness to achieve the effect of brightening. The diffusion film is used to diffuse the light, so that the line light source or point light source is distributed into a uniform surface light source, making the brightness of the entire plane of the backlight module 3 more uniform and avoiding uneven phenomena such as dark spots and bright spots. Finally, the content in the liquid crystal panel 2 is projected, and the projected content can be updated at any time through the liquid crystal panel 2.

[0098] It should be noted that the brightness enhancement film can be set in multiple layers, thereby further improving the brightness of the backlight module 3.

[0099] In some alternative embodiments, such as Figure 8As shown, the light strip 31 is disposed on the side of the backlight assembly 32, that is, the mounting area is located on the side plate 12, so that the light strip 31 is disposed on the side plate 12.

[0100] The number of light strips 31 can be multiple, and the multiple light strip 31 components are distributed on different sides of the backlight component 32.

[0101] In some alternative embodiments, in order to make the light more uniform and the final display effect better, the light strip 31 is parallel to the light guide plate.

[0102] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rear case assembly for mounting a backlight module (3) and a liquid crystal panel (2), characterized by, include: Back panel (11); Multiple side plates (12) are arranged around the outer periphery of the back plate (11), and the side plates (12) are arranged at an angle to the back plate (11); A support plate (13) is disposed at one end of the side plate (12) away from the back plate (11). The support plate (13) is disposed at an angle to the side plate (12). The back plate (11), the multiple side plates (12) and the support plate (13) surround and form a connected receiving chamber (14) and an entrance (15). The support plate (13) is used to support the liquid crystal panel (2), and the receiving chamber (14) is used to accommodate the backlight module (3). The back plate (11), the side plate (12) and the support plate (13) are constructed as an integral structure.

2. The rear housing assembly of claim 1, wherein, The back plate (11), the side plate (12) and the support plate (13) are integrally bent from sheet metal.

3. The rear housing assembly of claim 1, wherein, The support plate (13) includes: Support (131) is used to support the LCD panel (2). The limiting part (132) is set at an angle to the supporting part (131) and extends in a direction away from the receiving chamber (14). The limiting part (132) is used to abut against the outer edge of the liquid crystal panel (2).

4. The rear shell assembly according to claim 3, characterized in that, The support part (131) and the limiting part (132) are integrally bent from sheet metal.

5. The rear shell assembly according to claim 1, characterized in that, A connector (16) is provided on the side of the back plate (11) away from the receiving chamber (14), the connector (16) being used to connect external devices.

6. The rear shell assembly according to claim 1, characterized in that, The side plate (12) and / or the back plate (11) are provided with cable outlets (17), which are connected to the receiving chamber (14).

7. A liquid crystal module, characterized in that, The liquid crystal module further includes the rear housing assembly as described in any one of claims 1 to 6, and further includes: A liquid crystal panel (2) is disposed on the support plate (13); A backlight module (3) is disposed in the receiving chamber (14), and at least one of the support plates (13) presses against the backlight module (3). The backlight module (3) is used to provide a light source for the liquid crystal panel (2).

8. The liquid crystal module according to claim 7, characterized in that, A flexible buffer (4) is provided between the liquid crystal panel (2) and the support plate (13).

9. The liquid crystal module according to claim 7, characterized in that, The backlight module (3) includes: The light strip (31) has a mounting area, and the light strip (31) is attached to the mounting area by thermally conductive adhesive; the rear housing assembly is constructed of a thermally conductive material at least in the mounting area.

10. The liquid crystal module according to claim 9, characterized in that, The backlight module (3) further includes a backlight assembly (32), the backlight assembly (32) comprising: A reflector, a light guide plate, and an optical film are stacked in sequence, and the backlight assembly (32) is inserted into the receiving chamber (14) through the inlet (15).